2015
Vol. 1 No. 1:5
iMedPub Journals
http://www.imedpub.com
Research Article
Journal of Health & Medical Economics
ISSN 2471-9927
1
© Under License of Creative Commons Attribution 3.0 License | This article is available in: http://health-medical-economics.imedpub.com/archive.php
DOI: 10.21767/2471-9927.10005
Chialin Chang
1
,
Wei-Chen Chen
2
,
Michael McAleer
3,4
1. Department of Applied Economics,
Department of Finance Economics,
Natonal Chung Hsing University, Taiwan
2. Department of Applied Economics,
Natonal Chung Hsing University, Taiwan
3. Department of Quanttatve Finance,
Natonal Tsing Hua University, Taiwan
4. Econometric Insttute Erasmus, School
of Economics, Erasmus University
Roterdam, The Netherlands
Corresponding Author: Chialin Chang
Department of Applied Economics,
Department of Finance Economics, Natonal
Chung Hsing University, Taiwan
jialin.chang.nchu@gmail.com
Tel: 88635715131
Citation: Chang C, Chen WC, Michael
McAleer. Survival Analysis of Hospitalized
Very Low Birth Weight Infant Mortality in
Taiwan. J Health MedEcon. 2015, 1:1.
Introducton
The survival of newborns (or infants) is widely known to depend
on innate genetc factors, the mother’s previous medical history,
the mother’s health conditon during pregnancy, hospital of
birth, postpartum medical conditons, and environmental health.
Therefore, the survival rate of infants can be a direct measure of
the health of mothers and infants, as well as an indirect measure
of medical technology and environmental health.
Based on the defniton of the World Health Organizaton (WHO),
very low birth weight (VLBW) refers to a birth weight of less than
1500 g. Infants with minimal birth weights frequently sufer from
serious complicatons of respiratory distress syndrome, neonatal
intraventricular hemorrhage, necrotzing enterocolits, congenital
heart disease, congenital malformatons, and retnal disease.
Minimal birth weight infants are subject to treatments in the
neonatal intensive care unit or neonatal intermediate unit, the
cost of which can be a heavy fnancial burden for families.
Before the introducton of the Taiwan Natonal Health Insurance
scheme in 1995, there was a heavy economic and fnancial burden
on families that had minimal birth weight infants. Afer the
commencement of the Taiwan Natonal Health Insurance scheme,
the economic and fnancial burden was lifed substantally for
such families.
Treatng infants is diferent from treatng adult patents.
Establishing neonatology and providing physicians with
appropriate medical equipment to care for infants indicates
that the hospital has suitable quality for infant medical care.
Previous studies have found that the establishment of a Neonatal
Intensive Care Unit (NICU) enhanced a hospital’s care-giving
technology which, in turn, led to reduced deaths of infants and
minimal birth weight infants. These studies also found positve
correlatons among the occurrence of minimal birth weight
infants, the number of neonatologists, and the number of beds
in the NICU [1-3]. In additon to the above efects, the amount
of surgery performed can also afect the mortality rate. Much of
the literature is based on the complex surgery of coronary artery
bypass to explore the relatonship between surgical volume
Survival Analysis of Hospitalized Very Low
Birth Weight Infant Mortality in Taiwan
Abstract
This paper examines the determinants of hospitalized very low birth weight infant
(or neonatal) mortality using the Taiwan Natonal Health Insurance Research
database from 1997 to 2009. Afer infants are discharged from hospital, it is not
possible to track their mortality, so the Cox proportonal hazard model is used
to analyze the very low birth weight infant mortality rate. In order to clarify
treatment responsibility and to avoid selectve referral efects, we use the number
of infants treated in the preceding fve years to observe the efect of a physician’s
and hospital’s medical experience on the mortality rate of hospitalized minimal
birth weight infants. The empirical results show that, given disease control
variables, a higher infant weight, higher quality hospitals, increased hospital
medical experience, and higher investment in pediatrics can reduce the mortality
rate signifcantly. However, an increased physician’s medical experience does not
seem to infuence signifcantly the very low birth weight infant mortality rate.
Keywords: Very low birth weight; Neonatal mortality; Statstcal analysis; Cox
proportonal hazard model; Selectve referral; Taiwan Natonal Health Insurance
Scheme
Received: August, 25 2015; Accepted: September, 25 2015; Published: October 15,
2015